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+\documentclass{article}
+\usepackage{axiom}
+
+\author{Gabriel Dos~Reis}
+
+\begin{document}
+
+\begin{abstract}
+\end{abstract}
+
+\tableofcontents
+\eject
+
+\section{The Hostname domain}
+
+<<domain HOSTNAME Hostname>>=
+)abbrev domain HOSTNAME Hostname
+++ Author: Gabriel Dos Reis
+++ Date Created: August 23, 2008
+++ Date Last Modified: August 23, 2008
+++ References: RFC 1034, RFC 1035
+++ Description:  
+++   This domain represents hostnames on computer network.
+Hostname(): Public == Private where
+  Public == Join(SetCategory, CoercibleTo String) with
+    host: String -> %
+      ++ host(n) constructs a Hostname from the name `n'.
+  Private == add
+    Rep == String
+    host n == per n
+    x = y == rep x = rep y
+    coerce(x: %): String == rep x
+    coerce(x: %): OutputForm == rep(x)::OutputForm
+
+@
+
+\section{The PortNumber domain}
+<<domain PORTNUM PortNumber>>=
+)abbrev domain PORTNUM PortNumber
+++ Author: Gabriel Dos Reis
+++ Date Created: August 23, 2008
+++ Date Last Modified: August 23, 2008
+++ Description:  
+++   This domain represents network port numbers (notable TCP and UDP).
+PortNumber(): Public == Private where
+  Public == Join(SetCategory,CoercibleTo SingleInteger) with
+    port: SingleInteger -> %
+      ++ port(n) constructs a PortNumber from the integer `n'.
+  Private == add
+    Rep == SingleInteger
+    port n == per n
+    x = y == rep x = rep y
+    coerce(x: %): SingleInteger == rep x
+    coerce(x: %): OutputForm == rep(x)::OutputForm
+
+@
+
+
+\section{License}
+
+<<license>>=
+-- Copyright (C) 2007-2008, Gabriel Dos Reis.
+-- All rights reserved.
+-- 
+-- Redistribution and use in source and binary forms, with or without
+-- modification, are permitted provided that the following conditions are
+-- met:
+-- 
+--     - Redistributions of source code must retain the above copyright
+--       notice, this list of conditions and the following disclaimer.
+-- 
+--     - Redistributions in binary form must reproduce the above copyright
+--       notice, this list of conditions and the following disclaimer in
+--       the documentation and/or other materials provided with the
+--       distribution.
+-- 
+--     - Neither the name of The Numerical Algorithms Group Ltd. nor the
+--       names of its contributors may be used to endorse or promote products
+--       derived from this software without specific prior written permission.
+-- 
+-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+-- IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+-- TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+-- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+-- OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+-- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+-- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+@
+
+<<*>>=
+<<license>>
+<<domain HOSTNAME Hostname>>
+<<domain PORTNUM PortNumber>>
+
+@
+
+\end{document}